// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
let regex = Regex::new(r"(?U)(?s).*class\s+\w+\s*<.*,.*,.*>.*{").unwrap();
let string = "class ClazzA<R extends A,
S extends B<T>, T extends C<T>,
U extends D, W extends E,
X extends F, Y extends G, Z extends H>
extends OtherClazz<S> implements I<T> {
public void method(Type<Q, R> x) {
// ... code ...
}
}
";
// result will be a tuple containing the start and end indices for the first match in the string
let result = regex.captures(string);
let (start, end) = match result {
Some((s, e)) => (s, e),
None => {
// ...
}
};
println!("{}", &string[start, end]);
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/